These are for people about 198 to 265 pounds. I bought them and used them for a costume and they were also very fun to run around the yard in.  Other than a few cosmetic scuffs, they are like new.  I have snow skied my whole life and hopped on these and ran with no learning curve...they do tire you out though.  I have size 12 feet and had plenty of room for adjustment either way (larger or smaller). 

"Poweriser Jumping stilts are Excellent for fitness and exercise outdoors while having safe and exciting fun. Easy to learn you can be up and practicing in 5-10 minutes and after a few hours you will be walking and jumping confidently.

Poweriser Jumping Stilts have fiberglass leaf springs which compress under the users weight and flex back into shape to generate bounce, like a trampoline. The Jump Stilts are supported through an aluminium frame which the user straps on like a pair of conventional stilts and uses to intuitively control the springs.

Developed to function like natural leg extensions which give almost super human abilities. Allowing the user to Jump 8 ft in the Air, run at up to 20mph, and take 10 ft strides!"

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